EP 0426104 A2 19910508 - Laser wavelength measuring device.
Title (en)
Laser wavelength measuring device.
Title (de)
Vorrichtung zur Messung der Wellenlänge eines Lasers.
Title (fr)
Dispositif de mesure de longueur d'onde d'un laser.
Publication
Application
Priority
JP 28272689 A 19891030
Abstract (en)
A laser wavelength measuring device according to the invention is provided with a wavelength selecting means (12, 13) for use in selectively receiving beam in compliance with each of a reference beam and a measured beam in order to simplify a correction or comparison of oscillating wavelengths in the laser device and further to improve a reliability and a controlling responsive speed.
IPC 1-7
IPC 8 full level
G01J 3/30 (2006.01); G01J 9/00 (2006.01); H01S 3/00 (2006.01); G01J 3/12 (2006.01); G01J 3/28 (2006.01)
CPC (source: EP US)
G01J 9/00 (2013.01 - EP US); G01J 3/2803 (2013.01 - EP US); G01J 2003/1239 (2013.01 - EP US); G01J 2003/1243 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0426104 A2 19910508; EP 0426104 A3 19920115; CA 2028706 A1 19910501; JP H03144323 A 19910619; US 5170224 A 19921208
DOCDB simple family (application)
EP 90120786 A 19901030; CA 2028706 A 19901029; JP 28272689 A 19891030; US 60463590 A 19901029